Sigma-galant.com

Interesting tidbit if info, I had auto ratios, cant remember off the top of me head what they are, but in top at approx. 5000 rpm I wound off the clock. Over 210 klm/h. 8o| 1st gear could net me 75 - 80 klm/h at red line. ;sigh; I miss my ol' Corty now :cry: More than likely a 2.78:1 in your cortin...

Nice, that'll fix the the gear shifter - now what about the rest of the crappy gearbox? :lol: Funny enough I have a BW in my Sigma and it has done a couple of state race rounds ( IPRA ), some hillclimbs and sprints the gear box has never missed a beat and the shifta ( which has a nice plastic threa...

Sorry, but your neighbour obviously knows squat. Not suprised his an old drunk hahah who builds his mustang which SU carbys are probably available i do like my dells tho because im a hoon like that and the street is a track ;) But if anyone has any idea what carbys would put out more power for my l...

hi all, i am currently chainging my head gasket, can anyone tell me how to remove the chain to get the head off? there is a single bolt in the front of the cam sprocket - it take a 22 mm socket once undone the dizzy drive and sprocket come away from the cam the dizzy drive comes off and the sprocke...

haha, was waiting for this :) Winton - 1.42.2 :) Winton 2006 at the ken lee HQ 4 hour running in the super tin tops driven by Richard Fairlam 1.41.2 in his first race meeting with the car Sandown around 2007 again Richard pulled a 1.28 - although the best I've done is a 1.30 Phillip Island my best ...

you guys should out up times for the whole tracki not just the boring bit

Hi Cheater, If I could get 120kw atw that would be more than satisfactory, in fact that would be awesome!!!! That's double what I'm getting out of the current motor. My plan would be: Ported Head, O/S valves, you can get 1 mm OS Stainless Steel inlet and exhaust that will cut straight into the std ...

I know Panda (Peter) quite well, I will be seeing him in couple weeks when he comes over to Vic to stay with me to attend the Hanging Rock Car Show on 9th Feb. I have discussed my engines ideas with Panda on a couple of occasions and he has put me onto an engine builder he uses who also comes highl...

Can buy a lot of off the shelf performance bits so this should help to keep the costs down. Plans for induction are twin 45 DCOE webers, therefore which head is best for this application. just wondering what you engine are you rallying with atm both a 52 or 54 would do the job it just depends on wh...

Hi, Doing my home work on a potential new engine for my GD Galant Rally Car. I am required by CAMS PRC (Production Rally Car) regs to run a engine variant fitted to my model at production. information I've found says the biggest engine fitted was the 4G52 Aston in the Japanese models. Therefore I m...

Thanks guys all this feedback is awesome, really appreciated. So if i used a smaller holley is the fitting to a standard manifold simple or is the another manifold have you got a lot of paper work at home as I think the best thing you could do with a Holley is use it for a paper weight if you are g...

Excellent, thank you. This leads to a few more questions: Which of the later heads offers the best flow? For a NA motor making around 100kW ATW, is there any reason to use an Astron1 block? Can the later hydraulic rockers be converted to solid? the M6-7 have the highest flow however the M8-9 are a ...

a speco MS344 ( Billit cam of cause )
in 45 / 75 ex 85 / 45 with 267 deg @ 0.050" lift --
its quite a nice wide range cam on the 2.6 that runs ok from about 2000 rpm
and starts to move well once past 3000 and was making Max power at 6100 of cause it runs through to and past 7000 fairly quickly

The only negative is you will also need to get an adjustable cam gear and pack out the hydraulic tensioner to compensate for the extra chain length. as Scott has said shaving the head needs an adjustable cam gear - you retard the cam timing about 1 deg or 2 crank degs for each mm you remove from th...

Hi guys, I noticed this today at Supercheap - Tridon have released new high flow thermostats. They have a larger thermostat seat that appears to be 30% bigger than the standard. If you want to improve your coolant flow, take some load off your water pump and possibly reduce fuel consumption in the ...

Much less tollerance of head warp then im guessing? Or is there enough flex in the head to ensure A snug seating? well if you are using a coper head gasket you do need both head and block to be true - I at the time couldn't get a 2 lt astron head gasket only 2.6 parts of cause they would seal the h...

I was going through my stuff and I found a Copper 4g32 head gasket shim. What would you use this for? Sandwiching 2 head gaskets to decomp an engine? Its much less than 1mm thick.. sounds like a head gasket to me I use to run a 0.020" copper head gasket on a 2Lt astron ( about 0.5 mm ) that no...

There's not that much difference in price between known, good quality oil & "cheap stuff" ... so I use the good stuff & change it regularly (every 2 or 3 events). Cheap insurance I reckon. The day I can't afford to spend $40-odd on oil a couple of times a year, it's time to stop r...

yer ok, there is a wolf 2d for sale atm, I was thinkin about getting its cheap and I like wolfs, if you like Wolf gear thats fine but use a 3d or 4d that controls spark as well as fuel - being able to pull timing out if needed can been done a lot more accurately than with the old vacume canisters t...

Just wondering what oil you guys would use in a 4G32 that has only done 20,000klms since rebuild, the engine is mostly daily driven with some spirited drives on mountains and what not every now and then and track days every now and then. just wondering as it seems my choice of 15w50 wasnt a good on...

if you undo the big bolt at the front of the dizzy drive gear ( 22 AF socket from memory ) the gear pulls off and should sit on a sheet metal sadle
then you can drop the cam out
just do the reverse on assemble there is enough give in the chain tentioner to lift the gear back onto the cam

ive heard that the 2.4 destroker makes more power over 7000 Why ? my understanding on offsetting the bores is you get more leverage on the crank at the moment of ignition (ie: instead of the piston and rod being dead vertical above the crank relying on the inertia of the flywheel to pull it all aro...

i was thinking of using a 4G52 crank, then hopefully theyll sit flush with the block?. and 202 hypers seem to be cheaper and more readily available than astron pistons. if im going to be reboring for the 202 pistons anyway do you have any experience with offset bores? im trying to find as much hidd...

Hi guys compression should be 9.2:1 and 20psi boost will be the starting point, ill be getting ARP head studs and im trying to find a supplier of copper head gaskets and bronze valve guides. does anybody know if those stainless steel oversize valves are still available? For ignition im thinking an ...

Hi all,I have an astron 1 4g54 short motor that came with my lancer .It has acl duralite flattop pistons,balance cams removed,balanced .I plan to finish it,I have an M7 magna head ,I would like to know the maximum I can shave off the head without putting valve reliefs in the pistons or reseating th...

it would help if you stated what engine it was going on

Is this for a road car ? If so, it's probably a WOFTAM & won't make any meaningful difference to the handling. Strut braces can be useful in rally cars to stop the strut towers moving under severe punishment, or in circuit cars where chassis stiffness is likely to be important. No point in a ro...

Hey guys i had a problem with my 4g52 where the bolt that holds the tensioner between the balance shaft snapped off and i replaced it and ever since ive had a vibration at idle and pretty much all the way through the rev range. i didn't touch the balance shaft but i used a different sized bolt and ...

Like any diff, it will only break if you abuse it :) correct - my diffs had to stand a fair amount of abuse ,a lot more than a street car would on average in fact I dout if any of my breakages would happen on the street or on a circuit , Hillclimb was quite hard on running gear ie - pick a warm day...

I am guessing then that it isn't the same BW as used by XE-AU Falcon, VB-VR Commodore and R31 Skyline? If it was they would be hot property considering the massive range of ratios and LS centres that would be available. the sigma ran a smaller BW diff than the Commodare/falcon - and yes they break ...